Service bulletins for the 2021 Forest River Columbus
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
9 on file from NHTSA, as of 2026-10-19.
By type
By component
Only bulletins with component: Equipment and accessories are shown. Show all
| 4101598 | 2023-03-03. Service bulletin. EQUIPMENT. The backsplash may warp from the heat of the range. |
|---|---|
| 4101371-S | 2022-06-14. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; STRUCTURE. Possible poor seal insulation at the return air portion and/or air duct or trunk line of the air conditioner. |
| 4101430 | 2021-11-01. Service bulletin. EQUIPMENT:APPLIANCE:ELECTRIC WATER HEATER; EQUIPMENT:RECREATIONAL VEHICLE/TRAILER:LPG SYSTEMS:WATER HEATER. Water Heater Configuration. |
| 410-04012016-016 | 2021-06-07. Service bulletin. EQUIPMENT:RECREATIONAL VEHICLE/TRAILER:PLUMBING:POTABLE WATER:STORAGE TANK. Certain Columbus CMF383FB and CMF383FBC have been manufactured so that the shower drains into the solid (commonly known as the black water) waste tank. The shower should drain into the liquid (commonly known as the grey water) waste tank. |
| 410-04012016-016 | 2021-06-07. Service bulletin. EQUIPMENT:RECREATIONAL VEHICLE/TRAILER:PLUMBING:POTABLE WATER:STORAGE TANK. Certain Columbus CMF383FB and CMF383FBC have been manufactured so that the shower drains into the solid (commonly known as the black water) waste tank. The shower should drain into the liquid (commonly known as the grey water) waste tank. |
| 410-04012016-016 | 2021-06-07. Service bulletin. EQUIPMENT:RECREATIONAL VEHICLE/TRAILER:PLUMBING:POTABLE WATER:STORAGE TANK. Certain Columbus CMF383FB and CMF383FBC have been manufactured so that the shower drains into the solid (commonly known as the black water) waste tank. The shower should drain into the liquid (commonly known as the grey water) waste tank. Forest River will re-route and splice the drain line so that the shower drains into the proper waste tank. |
| 4101316 | 2021-04-01. Service bulletin. EQUIPMENT. The black tank flush may have been plumbed backwards. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.